JPS5855278A - Ruled line input system - Google Patents

Abstract

PURPOSE:To input ruled lines by distinguishing between interline cross ruled line and interline cross ruled line without increasing key numbers and operating steps by using a system in which the display form of a cursor can be switched to two kinds, upper 1/2 and lower 1/2 of one letter width. CONSTITUTION:In a letter display input unit capable of displaying print information on a display picture by using a cursor, as in a word processor, a selection means by which one line of letter (a) is divided into upper half (b) and lower half (c) and displayed and a memory means by which the display form of the cursor is stored are provided. By this, in the case of (a)' where a display form in which cross ruled line is drawn beneath the cursor is taken, interline cross ruled line (b)' can be printed if upper 1/2 line display (b) is selected, and also interline cross ruled line (c)' can be printed if lower 1/2 line display (c) is selected.

Description

[Detailed description of the invention] The present invention relates to a ruled line input method.

The ability to draw ruled lines on the screen by the operator using the keyboard is unique to word processors and is not found in other CRT terminal devices.

There are various operating methods for drawing ruled lines.

FIG. 1 is a diagram showing an example of a cursor display in which horizontal ruled lines between lines and horizontal ruled lines within lines are displayed on one display screen.

A ruled line drawn in the horizontal direction (hereinafter referred to as a horizontal ruled line) is marked with &! There are two types of lines that can be considered: horizontal ruled lines drawn between rows as shown in Section 18!1 (a) (hereinafter referred to as horizontal ruled lines);
As shown in Figure (b), horizontal ruled lines (hereinafter referred to as
This is called an inline horizontal ruled line).

Conventionally, when drawing ruled lines on a display screen, each word processor could draw only one type of horizontal ruled line because there was no means to distinguish between the two and input them.

The present invention has been made based on the above circumstances, and in order to distinguish between horizontal ruled line input between lines and horizontal ruled line input within a line, the display shape of the cursor is changed to 1 horizontal character width and 1/2 line above when in the ruled line drawing operation mode. For example, if you want to draw a horizontal ruled line directly below the cursor, if the cursor is 1/2 line wide at the top, then It is an object of the present invention to provide a ruled line input method that allows specifying horizontal ruled lines between lines when using a cursor with a lower 1/2 line width.

Hereinafter, the present invention will be explained in detail using FIG. 2 and subsequent figures.

FIG. 2 is a word processor diagram to which the present invention is applied, and numeral 1 represents a main memory in which various programs and data are stored. 2 is a CPU which performs document processing based on the program stored in the main memory 1 and also controls various parts connected to the system. 3 is a KB/CRT controller which controls input/output of a keyboard display device (KB/CRT) 4 connected thereto.

The main memory 1, CPtJ2, and KB/CRT controller 3 are commonly connected to the system bus 5.

A kanji pattern memory 6 stores kanji fonts to be displayed or printed, and is connected to the KB/CRT controller 3.

FIG. 3 is a block diagram showing the peripheral configuration of a cursor display control circuit related to the present invention in the KB/CRT controller 3.

In the figure, numeral 31 is a display address generator that generates display character position addresses and inline slice addresses for CRT display. Further, 32 is a cursor display position address register (CDAR), 33 is a -sor display star scratch address register (CDSRAR), and 34 is a cursor display end rasp address register (CDERA).
R).

Values (art dealer configuration) are set in each of the above registers 31 to 34 by the system at the time of initialization, and when initialized to -6, it becomes necessary to change the cursor display character position and the cursor display shape. It remains fixed at all times.

35 is a refresh memory in which display data food is stored. 36 is a character pattern generator, which has a function of converting code data obtained from the refresh memory 35 into parallel pattern data.

37 is a shift register that converts the parallel data output obtained from the character pattern generator 36 into serial data. The output of this shift register 31 becomes a video signal and is supplied to the 5- input terminal of the OR gate 43.

38 is a comparator to which the output of the address generator 31 and the output of the register CD A R 32 are supplied as inputs, and the display timing of the cursor is detected here.

39 is also a comparator, and the address generator 31
The output and register CD5RAR33 output are provided as inputs, where the timing of the cursor display start slice is detected. The comparator 40 includes the address generator 31
The output and register CD ERA R34 output is provided as an input, where the timing of the cursor display end slice is detected.

41 is an SR type flip-flop, the output of the comparator 39 is supplied to the S terminal, and the output of the comparator 40 is supplied to the R terminal, and the display shape of the cursor is determined here. That is, the cursor is displayed with the width of the slice specified by the registers 33 and 34.

The output of the flip-flop 41 is subjected to an AND condition with the cursor display character position in an AND gate 42, and then an OR condition with the video signal is determined in an OR gate 43 to display a cursor.

In addition, 31 to 34 and 38 to 42 in the figure are usually CRTs.
It is often included inside an I control LSI.

FIG. 4 shows an example of the shape of a cursor display according to the present invention.

In the figure, (a) is the normal display shape with one character width and full height of one line, (b) is also displayed with the top 1/2 line width, and (C) is the bottom 1/2 line width. Each is shown in two-line width.

In addition, (a)' shows a different display format, the normal display is below one character, (b) - shows that the cursor is on the top 1/2 line, and (C )- shows that the cursor is on the bottom 1/2 line, and is the same as (a).

An overview of the system operation will be described below based on FIGS. 2 and 3.

During normal use, the KB/CRT is shown in Figure 4 (a).
Alternatively, a cursor having the shape shown in (a) - is displayed.

If you want to set borders for the document displayed on the screen, press the "Rules" primary key on the keyboard display 4.
The CPU 2 detects this via the B/CRT controller 3, sets a flag (control flag) in the main storage device 1 indicating that the cursor has entered the 1/2 line width display mode, and A flag indicating that it is on the /2 line side is also set in the main storage device 1. And 0PU2 is KB
/CRTD Specifies the current cursor display character position information and an instruction to display it on the bottom 1/2 line side for characters 0-73.

The KB/CRT controller 3 sets the given display character position information to the CADR 32 shown in FIG. 7'-')”
14” and set the data “°27” in CDERA R34.In the above, when entering the 1/2 line width power display mode, I set the bottom 1/2 line to be displayed first. , the top 1/2 row side may be displayed first.

Furthermore, the display shape of the cursor may be (C)- instead of (C).

On the other hand, among the cursor movement keys that exist on KB/CRTA, the left and right movement keys are used to control left and right movement as they are, but when the up and down movement keys are recited, CPU2 moves down 1/2 line for each key. Set and reset the flag indicating whether the side is displayed or not, and set the KB/CR
The T controller 3 is also instructed alternately to the upper 1/2 row side and the lower 1/2 row side.

As a result, the cursor display is controlled vertically every 1/2 line.

In addition, when the upper 1/2 line side instruction arrives, the KB/CRT controller 3 sets "0" to CD S RA R33 and sets CD E RA to display the cursor shown in FIG. 4(b).
Set R34 to 13”.

Now, as a matter of operational convention, when using the cursor in Figure 4(b), it is determined that the vertical address of the ruled line indicates the center of the line, and the cursor at steel part (0) indicates the line and the line. .

9- The operator draws ruled lines on the document (for horizontal ruled lines, selects whether to draw a ruled line between lines (horizontal ruled line between lines) or in the center of one line (horizontal ruled line within a line) in the vertical direction. Select using the cursor movement keys, move the cursor to the desired position using the horizontal cursor movement keys to specify the viewpoint and end point of the horizontal ruled line, and then press the ruled line key again to specify.

Also, for vertical ruled lines, first use the horizontal cursor movement keys to move the cursor to the desired digit, then use the up and down cursor movement keys to start from the center of the desired line. Alternatively, select whether to start from between lines and press the ``rules key''.When the ``rules key'' is pressed, the CPU 2 displays the current cursor display character position and 1/2 line width either above or below. Main memory of what is happening @
This can be known by referring to the control flag in @1.

It is assumed that the 1/2 line width display mode of the cursor is reset by pressing the "execute key".

10- As explained above, according to the present invention, it is possible to distinguish between horizontal ruled lines between lines and horizontal ruled lines within lines and input them without particularly increasing the number of keys on the keyboard or increasing the number of keyboard operation steps.

In the embodiments of the present invention, only the case where the cursor is generated purely by hardware has been described, but the cursor is a type of character display, and the software generates the cursor in the form of character display using two types of character patterns in the upper half and lower half. The present invention can be similarly applied to the case of displaying, and even in this case, it does not depart from the spirit of the present invention.

[Brief explanation of the drawing]

FIG. 1 is a diagram showing an example of a cursor display showing horizontal ruled lines between lines and horizontal ruled lines within lines on the display screen, FIG. 2 is a schematic block diagram showing the internal configuration of a word processor to which the present invention is adopted, and FIG. 3 1 shows the peripheral configuration of a cursor display control circuit of the KB/CRT controller that is particularly related to the present invention.
Figure 019 and Figure 4 are 1... of the h-vine according to the present invention.
...Main memory 2 ...CPU 3 ...KB/CRT controller 4 ...
・Keyboard display al15...System bus 31...Address generator 32...Kurzuru display position address register 3
3...Star tusf address register 34.
...End raster address register 35...
... Refresh memory 36 ... Character generator 37 ...
...Shift register No. 38/39 40...Comparator 41...Flip-flop 42...And gate 43...Or gate (7317) Patent attorney Kensuke Norichika (Ita'1J)
ABCOEFG HIJ to LMN ○PQR5TU '+1 'I)' Figure can) ABC()EFG ■ W H, IJKLMN -Y ○PQR5TU Figure 4 also) (C) (b)'

Claims (3)

[Claims] (1) In a character display input device that inputs ruled line information on a display screen using a cursor, a first means for selectively displaying a cursor that takes a display form in the upper and lower halves of one line of character area; and a second means for storing in which of the display formats the cursor is located, and when ruled line position information consisting of row position and column position is input via the input device, the second means A ruled line input method characterized in that the line position information is classified into two types, an in-line position and a line-to-line position, by referring to the stored contents, and the ruled lines are inputted in 1/2 increments. (2) Normal - In a character display input device that displays the cursor at the full height of the line, ! l- A mode in which the cursor is selectively displayed in the upper half and lower half of a line, comprising a key for instructing the import force and a means for detecting that this key is pressed, and according to the detection result by this means. The ruled line input method according to claim 1, wherein the ruled line input method operates. (3) In a mode where the cursor is selectively displayed in the upper and lower halves of a line, if the up/down cursor movement key is pressed, the cursor will be controlled to move up and down in 1/2 line increments. Characteristic Claim 2
Ruled line input method described in section.